Conveyor Idler Roller 1.1.Dia 60-219,length190-3400 2.Used in mining,cement,steel,harbor,etc 3.Standard:ISO,CEMA ... ,DIN,JIS The quality standards of our Conveyor Idlers conforms to IS : ... resistant ball bearings. These bearings are specially designed for Belt Conveyor applications. Double multilabyrinth seals ensures maximum protection against dirt, ...